package com.sky.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.github.xiaoymin.knife4j.core.util.CollectionUtils;
import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.dto.*;
import com.sky.entity.*;
import com.sky.exception.OrderBusinessException;
import com.sky.exception.ShoppingCartBusinessException;
import com.sky.mapper.*;
import com.sky.result.PageResult;
import com.sky.service.OrderService;
import com.sky.utils.HttpClientUtil;
import com.sky.utils.WeChatPayUtil;
import com.sky.vo.OrderPaymentVO;
import com.sky.vo.OrderStatisticsVO;
import com.sky.vo.OrderSubmitVO;
import com.sky.vo.OrderVO;
import com.sky.websocket.WebSocketServer;
import org.aspectj.weaver.ast.Or;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import javax.naming.NamingEnumeration;
import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

@Service
public class OrderServiceImpl implements OrderService {
    @Autowired
    private OrderMapper orderMapper;
    @Autowired
    private ShoppingCartMapper shoppingCartMapper;
    @Autowired
    private AddressBookMapper addressBookMapper;
    @Autowired
    private OrderDetailMapper orderDetailMapper;
    @Autowired
    private UserMapper userMapper;
    @Autowired
    private WeChatPayUtil weChatPayUtil;
//   @Value("${sky.shop.address}")
//   private String shopAddress;
//    @Value("${sky.baidu.ak}")
//    private String ak;
    @Autowired
    private WebSocketServer webSocketServer;

    @Override//用户下单
    @Transactional
    public OrderSubmitVO getsubmit(OrdersSubmitDTO ordersSubmitDTO) {
        //判断地址是否存在，购物车是否为空
        Long addressBookId = ordersSubmitDTO.getAddressBookId();
        AddressBook addressBook = addressBookMapper.getById(addressBookId);
        if (addressBook == null) {
            throw new ArithmeticException(MessageConstant.ADDRESS_BOOK_IS_NULL);
        }
        //检查用户的收获地址是否超出配送范围
//        checkOutOfRange(addressBook.getCityName()+addressBook.getDistrictName()+addressBook.getDetail());
        ShoppingCart shoppingCart = new ShoppingCart();
        shoppingCart.setUserId(BaseContext.getCurrentId());
        List<ShoppingCart> list = shoppingCartMapper.list(shoppingCart);
        if (list == null || list.size() == 0) {
            throw new ShoppingCartBusinessException(MessageConstant.SHOPPING_CART_IS_NULL);
        }
        //构造订单对象，将订单数据保存到订单表
        Orders orders = new Orders();
        BeanUtils.copyProperties(ordersSubmitDTO, orders);
        orders.setPhone(addressBook.getPhone());
        orders.setAddress(addressBook.getDetail());
        orders.setConsignee(addressBook.getConsignee());
        orders.setNumber(String.valueOf(System.currentTimeMillis()));
        orders.setUserId(BaseContext.getCurrentId());
        orders.setStatus(Orders.PENDING_PAYMENT);
        orders.setPayStatus(Orders.UN_PAID);
        orders.setOrderTime(LocalDateTime.now());
        //向订单表插入1条数据
        orderMapper.save(orders);
        //订单明细数据
        List<OrderDetail> orderDetailList = new ArrayList<>();
        for (ShoppingCart cart : list) {
            OrderDetail orderDetail = new OrderDetail();
            BeanUtils.copyProperties(cart, orderDetail);
            orderDetail.setOrderId(orders.getId());
            orderDetailList.add(orderDetail);
        }
        //向明细表插入n条数据
        orderDetailMapper.save(orderDetailList);
        //清理购物车中的数据
        shoppingCartMapper.clearid(BaseContext.getCurrentId());
        //封装返回结果
        OrderSubmitVO orderSubmitVO = new OrderSubmitVO();
        orderSubmitVO.setId(orders.getId());
        orderSubmitVO.setOrderNumber(orders.getNumber());
        orderSubmitVO.setOrderAmount(orders.getAmount());
        orderSubmitVO.setOrderTime(orders.getOrderTime());
        Map map=new HashMap<>();
        map.put("type",1);
        map.put("orderId",orders.getId());
        map.put("orderId","订单号:"+orders.getNumber());
        webSocketServer.sendToAllClient(JSON.toJSONString(map));
        return orderSubmitVO;
    }


    @Override//(历史订单分页查询)
    public PageResult page(OrdersPageQueryDTO ordersPageQueryDTO) {
        //设置分页
        PageHelper.startPage(ordersPageQueryDTO.getPage(), ordersPageQueryDTO.getPageSize());
        //分页查询
        Page<Orders> page = orderMapper.page(ordersPageQueryDTO);
        List<OrderVO> list = new ArrayList();
        //查询处订单明细，并封装到OrderVo中
        if (page != null && page.getTotal() > 0) {
            for (Orders orders : page) {
                Long ordersId = orders.getId();
                //查询订单明细
                List<OrderDetail> orderDetailList = orderDetailMapper.getById(ordersId);
                OrderVO orderVO = new OrderVO();
                BeanUtils.copyProperties(orders, orderVO);
                orderVO.setOrderDetailList(orderDetailList);
                list.add(orderVO);
            }
        }
        return new PageResult(page.getTotal(), list);
    }

    @Override//根据id查询订单详情
    public OrderVO getDetail(Long id) {
        //根据id查询订单
        Orders orders = orderMapper.getByid(id);
        //根据id查询订单明细
        List<OrderDetail> orderDetails = orderDetailMapper.getById(id);
        //封装到Order中
        OrderVO orderVO = new OrderVO();
        BeanUtils.copyProperties(orders, orderVO);
        orderVO.setOrderDetailList(orderDetails);
        return orderVO;
    }

    @Override//用户取消订单
    public void cancelId(Long id) throws Exception {
        //根据id查询订单
        Orders orders = orderMapper.getByid(id);
        //验证订单是否存在
        if (orders == null) {
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }
        //查看订单状态
        if (orders.getStatus() > 2) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Orders order = new Orders();
        order.setId(orders.getId());
//        //判断订单是否在处于接单状态下，如果在就要进行退款
//        if (orders.getStatus().equals(Orders.TO_BE_CONFIRMED)) {
//            //调用微信支付接口进行退款
//            weChatPayUtil.refund(
//                    orders.getNumber(),//商户订单号
//                    orders.getNumber(),//商户退款单号
//                    new BigDecimal(0.01),//退款金额，单位 元
//                    new BigDecimal(0.01));//原订单金额
//            //支付状态修改为退款
//            order.setPayStatus(Orders.REFUND);
//        }
        //更新订单状态，取消原因，取消时间
        order.setStatus(Orders.CANCELLED);
        order.setCancelReason("用户取消");
        order.setCancelTime(LocalDateTime.now());
        orderMapper.update(order);

    }

    @Override//用户再来一单
    public void save(Long id) {
        //查询当前用户id
        Long userId = BaseContext.getCurrentId();
        //根据订单id查询当前订单详情
        List<OrderDetail> orderDetailList = orderDetailMapper.getById(userId);
        // 将订单详情对象转换为购物车对象
        List<ShoppingCart> shoppingCartList = orderDetailList.stream().map(orderDetail -> {
            ShoppingCart shoppingCart = new ShoppingCart();
            // 将原订单详情里面的菜品信息重新复制到购物车对象中
            BeanUtils.copyProperties(orderDetail, shoppingCart, "id");
            shoppingCart.setUserId(userId);
            shoppingCart.setCreateTime(LocalDateTime.now());
            return shoppingCart;
        }).collect(Collectors.toList());
        shoppingCartMapper.inster(shoppingCartList);
    }

    @Override//用户催单
    public void reminder(Long id) {
        // 查询订单是否存在
        Orders orders = orderMapper.getByid(id);
        if (orders == null) {
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }

        //基于WebSocket实现催单
        Map map = new HashMap();
        map.put("type", 2);//2代表用户催单
        map.put("orderId", id);
        map.put("content", "订单号：" + orders.getNumber());
        webSocketServer.sendToAllClient(JSON.toJSONString(map));
    }

    @Override//商家订单搜索
    /**
     * 订单搜索
     * @param ordersPageQueryDTO
     * @return
     */
    public PageResult pages(OrdersPageQueryDTO ordersPageQueryDTO) {
        PageHelper.startPage(ordersPageQueryDTO.getPage(),
                ordersPageQueryDTO.getPageSize());

        Page<Orders> page = orderMapper.page(ordersPageQueryDTO);

        // 部分订单状态，需要额外返回订单菜品信息，将Orders转化为OrderVO
        List<OrderVO> orderVOList = getOrderVOList(page);

        return new PageResult(page.getTotal(), orderVOList);
    }

    private List<OrderVO> getOrderVOList(Page<Orders> page) {
        // 需要返回订单菜品信息，自定义OrderVO响应结果
        List<OrderVO> orderVOList = new ArrayList<>();

        List<Orders> ordersList = page.getResult();
        if (!CollectionUtils.isEmpty(ordersList)) {
            for (Orders orders : ordersList) {
                // 将共同字段复制到OrderVO
                OrderVO orderVO = new OrderVO();
                BeanUtils.copyProperties(orders, orderVO);
                String orderDishes = getOrderDishesStr(orders);

                // 将订单菜品信息封装到orderVO中，并添加到orderVOList
                orderVO.setOrderDishes(orderDishes);
                orderVOList.add(orderVO);
            }
        }
        return orderVOList;
    }

    /**
     * 根据订单id获取菜品信息字符串
     * @param orders
     * @return
     */
    private String getOrderDishesStr(Orders orders) {
        // 查询订单菜品详情信息（订单中的菜品和数量）
        List<OrderDetail> orderDetailList = orderDetailMapper.getById(orders.getId());

        // 将每一条订单菜品信息拼接为字符串（格式：宫保鸡丁*3；）
        List<String> orderDishList = orderDetailList.stream().map(x -> {
            String orderDish = x.getName() + "*" + x.getNumber() + ";";
            return orderDish;
        }).collect(Collectors.toList());

        // 将该订单对应的所有菜品信息拼接在一起
        return String.join("", orderDishList);
    }


    @Override//各个状态的订单数量统计

    public OrderStatisticsVO statistics() {
        Integer toBeConfirmed = orderMapper.getstatus(Orders.TO_BE_CONFIRMED);//待付款
        Integer confirmed = orderMapper.getstatus(Orders.CONFIRMED);//已接单
        Integer delivery = orderMapper.getstatus(Orders.DELIVERY_IN_PROGRESS);//派送中
        // 将查询出的数据封装到orderStatisticsVO中响应
        OrderStatisticsVO orderStatisticsVO = new OrderStatisticsVO();
        orderStatisticsVO.setToBeConfirmed(toBeConfirmed);
        orderStatisticsVO.setConfirmed(confirmed);
        orderStatisticsVO.setDeliveryInProgress(delivery);
        return orderStatisticsVO;


    }

    @Override//接单
    public void getconfirm(OrdersConfirmDTO ordersConfirmDTO) {
        Orders orders = new Orders();
        orders.setStatus(Orders.CONFIRMED);
        orders.setId(ordersConfirmDTO.getId());
        orderMapper.update(orders);
    }

    @Override//拒单
    public void rejection(OrdersRejectionDTO ordersRejectionDTO) throws Exception {
        //根据id查询订单
        Orders orders = orderMapper.getByid(ordersRejectionDTO.getId());
        //判断订单是否存在并且状态为待接单状态
        if (orders == null || !orders.getStatus().equals(Orders.TO_BE_CONFIRMED)) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        //支付状态
//        Integer paystatus = orders.getStatus();
//        if (paystatus == Orders.PAID) {
//            //用户已支付，需要退款
//            weChatPayUtil.refund(orders.getNumber()
//                    , orders.getNumber(),
//                    new BigDecimal(0.01),
//                    new BigDecimal(0.01));
//        }
        // 拒单需要退款，根据订单id更新订单状态、拒单原因、取消时间
        Orders order = new Orders();
        order.setId(orders.getId());
        order.setStatus(Orders.CANCELLED);
        order.setRejectionReason(ordersRejectionDTO.getRejectionReason());
        order.setCancelTime(LocalDateTime.now());
        orderMapper.update(order);
    }

    @Override//商家取消订单
    public void cancel(OrdersCancelDTO ordersCancelDTO) throws Exception {
        // 根据id查询订单
        Orders orders = orderMapper.getByid(ordersCancelDTO.getId());
        //支付状态
//        Integer payStatus = orders.getPayStatus();
//        if (payStatus == 1) {
//            //用户已支付，需要退款
//            weChatPayUtil.refund(orders.getNumber(),
//                    orders.getNumber(),
//                    new BigDecimal(0.01),
//                    new BigDecimal(0.01));
//        }
        // 管理端取消订单需要退款，根据订单id更新订单状态、取消原因、取消时间
        Orders order = new Orders();
        order.setId(ordersCancelDTO.getId());
        order.setStatus(Orders.CANCELLED);
        order.setCancelReason(orders.getCancelReason());
        order.setCancelTime(LocalDateTime.now());
        orderMapper.update(order);
    }

    @Override//派送订单
    public void getdelivery(Long id) {
        // 根据id查询订单
        Orders orders = orderMapper.getByid(id);
        if (orders == null || !orders.getStatus().equals(Orders.CONFIRMED)) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Orders order = new Orders();
        order.setId(orders.getId());
        //更新订单状态,状态转为派送中
        order.setStatus(Orders.DELIVERY_IN_PROGRESS);
        orderMapper.update(order);
    }

    @Override//完成订单
    public void complete(Long id) {
        // 根据id查询订单
        Orders orders = orderMapper.getByid(id);
        if (orders == null || !orders.getStatus().equals(Orders.DELIVERY_IN_PROGRESS)) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Orders order = new Orders();
        order.setId(orders.getId());
        //更新订单状态,状态转为完成
        order.setStatus(Orders.COMPLETED);
        order.setDeliveryTime(LocalDateTime.now());
        orderMapper.update(order);
    }

    @Override//订单支付
    public OrderPaymentVO payment(OrdersPaymentDTO ordersPaymentDTO) throws Exception {
        // 当前登录用户id
        Long userId = BaseContext.getCurrentId();
        User user = userMapper.getById(userId);

        //调用微信支付接口，生成预支付交易单
        JSONObject jsonObject = weChatPayUtil.pay(
                ordersPaymentDTO.getOrderNumber(), //商户订单号
                new BigDecimal(0.01), //支付金额，单位 元
                "苍穹外卖订单", //商品描述
                user.getOpenid() //微信用户的openid
        );

        if (jsonObject.getString("code") != null && jsonObject.getString("code").equals("ORDERPAID")) {
            throw new OrderBusinessException("该订单已支付");
        }

        OrderPaymentVO vo = jsonObject.toJavaObject(OrderPaymentVO.class);
        vo.setPackageStr(jsonObject.getString("package"));

        return vo;
    }

    //支付成功，修改订单状态
    public void paySuccess(String outTradeNo) {

        // 根据订单号查询订单
        Orders ordersDB = orderMapper.getByNumber(outTradeNo);

        // 根据订单id更新订单的状态、支付方式、支付状态、结账时间
        Orders orders = Orders.builder()
                .id(ordersDB.getId())
                .status(Orders.TO_BE_CONFIRMED)
                .payStatus(Orders.PAID)
                .checkoutTime(LocalDateTime.now())
                .build();

        orderMapper.update(orders);
    }
    /**
     * 检查客户的收货地址是否超出配送范围
     * @param address
     */
//    private void checkOutOfRange(String address) {
//        Map map = new HashMap();
//        map.put("address",shopAddress);
//        map.put("output","json");
//        map.put("ak",ak);
//
//        //获取店铺的经纬度坐标
//        String shopCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);
//
//        JSONObject jsonObject = JSON.parseObject(shopCoordinate);
//        if(!jsonObject.getString("status").equals("0")){
//            throw new OrderBusinessException("店铺地址解析失败");
//        }
//
//        //数据解析
//        JSONObject location = jsonObject.getJSONObject("result").getJSONObject("location");
//        String lat = location.getString("lat");
//        String lng = location.getString("lng");
        //店铺经纬度坐标
//        String shopLngLat = lat + "," + lng;
//
//        map.put("address",address);
//        //获取用户收货地址的经纬度坐标
//        String userCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);
//
//        jsonObject = JSON.parseObject(userCoordinate);
//        if(!jsonObject.getString("status").equals("0")){
//            throw new OrderBusinessException("收货地址解析失败");
//        }

        //数据解析
//        location = jsonObject.getJSONObject("result").getJSONObject("location");
//        lat = location.getString("lat");
//        lng = location.getString("lng");
//        //用户收货地址经纬度坐标
//        String userLngLat = lat + "," + lng;
//
//        map.put("origin",shopLngLat);
//        map.put("destination",userLngLat);
//        map.put("steps_info","0");

        //路线规划
//        String json = HttpClientUtil.doGet("https://api.map.baidu.com/directionlite/v1/driving", map);
//
//        jsonObject = JSON.parseObject(json);
//        if(!jsonObject.getString("status").equals("0")){
//            throw new OrderBusinessException("配送路线规划失败");
//        }
//
//        //数据解析
//        JSONObject result = jsonObject.getJSONObject("result");
//        JSONArray jsonArray = (JSONArray) result.get("routes");
//        Integer distance = (Integer) ((JSONObject) jsonArray.get(0)).get("distance");
//
//        if(distance > 5000){
//            //配送距离超过5000米
//            throw new OrderBusinessException("超出配送范围");
//        }
//    }

}
